const Koa = require('koa');
// const log = require('./log')

const app = new Koa();

// app.use(log());

app.use(async (ctx, next) => {
  console.log('1 next 之前')
  await next();
  console.log('1 next 之后')
})


app.use(async (ctx, next) => {
  console.log('2 next 之前')
  await next();
  console.log('2 next 之后')
})

app.use(async (ctx, next) => {
  console.log('3 next 之前')
  await next();
  console.log('3 next 之后')
})


app.listen(3000, () => {
  console.log('localhost 3000')
})


